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How do you properly determine the current script directory in Python?
...rand type(s) for +: 'WindowsPath' and 'str' when I tried appending another string to the file path with the + operator. A workaround that worked was wrapping *parent* in str() function.
– Daniel Dut
Jul 4 '18 at 5:54
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mongodb/mongoose findMany - find all documents with IDs listed in array
... @chovy try converting them to ObjectIds first, instead of passing strings.
– Georgi Hristozov
Dec 2 '14 at 15:28
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Test if string is a number in Ruby on Rails
...
Create is_number? Method.
Create a helper method:
def is_number? string
true if Float(string) rescue false
end
And then call it like this:
my_string = '12.34'
is_number?( my_string )
# => true
Extend String Class.
If you want to be able to call is_number? directly on the string...
What are the correct version numbers for C#?
...e methods, Static local functions and Enhancement of interpolated verbatim strings.
C# 9.0 still in preview. Expected to be released in November of 2020 along with .Net 5. Major new features: init-only properties, records, with-expressions, data classes, positional records, top-level programs, impro...
Getting realtime output using subprocess
...n an empty line, which does not evaluate as true. it only returns an empty string when the pipe closes, which will be when the subprocess terminates.
– Alice Purcell
Apr 9 '10 at 12:24
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Using `textField:shouldChangeCharactersInRange:`, how do I get the text including the current typed
...e. To get the text after update use:
[textField2 setText:[textField1.text stringByReplacingCharactersInRange:range withString:string]];
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How to delete a file via PHP?
.../github.com/luyadev/luya/blob/master/core/helpers/FileHelper.php
* @param string $filename The file path to the file to delete.
* @return boolean Whether the file has been removed or not.
*/
function unlinkFile ( $filename ) {
// try to force symlinks
if ( is_link ($filename) ) {
...
How to replace captured groups only?
I have HTML code before and after the string:
5 Answers
5
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How do I make a list of data frames?
...f data frames here are three good choices:
# base option - slower but not extra dependencies
big_data = do.call(what = rbind, args = df_list)
# data table and dplyr have nice functions for this that
# - are much faster
# - add id columns to identify the source
# - fill in missing values if some...
How does this checkbox recaptcha work and how can I use it?
... verify the "g-recaptcha-response" control is filled in:
protected static string ReCaptcha_Key, ReCaptcha_Secret;
protected void btnSubmit_Click(object sender, EventArgs e)
{
if (!String.IsNullOrEmpty(Request.Form["g-recaptcha-response"]))
{
// other code
} else
{
lb...